USGS Streamgage 12143600
SF Snoqualmie River at Edgewick, WA
SF Snoqualmie River at Edgewick, WA is USGS streamgage 12143600 in Washington, monitoring river discharge in hydrologic subbasin 17110010. It drains a watershed of about 66 square miles. Discharge records at this site go back to 1962. Typical flow runs near 152.4 cfs in July and 490.1 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Washington
- Drainage area
- 66 sq mi
- Gauge elevation
- 592 ft
- Subbasin (HUC-8)
- 17110010
- Coordinates
- 47.4526, -121.71788
- USGS site number
- 12143600
- Records begin
- 1962-07-01 (64 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 64 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 157.5 | 358 | 1,246.8 | |
| February | 163.2 | 312.8 | 929.1 | |
| March | 189.2 | 347.4 | 800.5 | |
| April | 279 | 490.1 | 1,008 | |
| May | 348.1 | 635.2 | 1,208.7 | |
| June | 205.5 | 438.3 | 1,042.2 | |
| July | 93.5 | 152.4 | 420.4 | |
| August | 59.6 | 77.4 | 143.1 | |
| September | 50.6 | 70.2 | 197.4 | |
| October | 60.4 | 157.9 | 685.9 | |
| November | 148.6 | 399 | 1,339.7 | |
| December | 152.5 | 326.7 | 1,048.1 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- Boxley Creek near Cedar Falls, WA
- Boxley Creek near Edgewick, WA
- SF Snoqualmie River at North Bend, WA
- Snoqualmie River near Snoqualmie, WA
- Raging River near Fall City, WA
- NF Tolt River above Yellow Creek near Carnation, WA
- North Fork Tolt River near Carnation, WA
- South Fork Tolt River near Index, WA